Electronic Components Datasheet Search |
|
LMC6762AIMX Datasheet(PDF) 10 Page - Texas Instruments |
|
|
LMC6762AIMX Datasheet(HTML) 10 Page - Texas Instruments |
10 / 22 page LMC6762 SNOS739D – JULY 1997 – REVISED MARCH 2013 www.ti.com Shoot-Through Current The shoot-through current is defined as the current surge, above the quiescent supply current, between the positive and negative supplies of a device. The current surge occurs when the output of the device switches states. This transient switching current results in glitches in the supply voltage. Usually, glitches in the supply lines are compensated by bypass capacitors. When the switching currents are minimal, the values of the bypass capacitors can be reduced considerably. Figure 27. LMC6762 Circuit for Measurement of the Shoot-Through Current Figure 28. Measurement of the Shoot-Through Current From Figure 27 and Figure 28 the shoot-through current for the LMC6762 can be approximated to be 0.2 mA (200 mV/1 k Ω). The duration of the transient is measured as 1 μs. The values needed for the local bypass capacitors can be calculated as follows: Area of Δ = ½ (1 μs × 200 μA) = 100 pC If the local bypass capacitor has to provide this charge of 100 pC, the minimum value of the local capacitor to prevent local degradation of VCC can be calculated. Suppose that the maximum voltage droop that the system can tolerate is 100mV, ΔQ = C * ( ΔV) →C = ( ΔQ/ΔV) = 100 pC/100 mV = 0.001 μF The low internal feedthrough current of the LMC6762 thus requires lower values for the local bypass capacitors. In applications where precision is not critical, this is a significant advantage, as lower values of capacitors result in savings of board space, and cost. 10 Submit Documentation Feedback Copyright © 1997–2013, Texas Instruments Incorporated Product Folder Links: LMC6762 |
Similar Part No. - LMC6762AIMX |
|
Similar Description - LMC6762AIMX |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |